CN113563943A - High-performance gear lubricating grease - Google Patents

High-performance gear lubricating grease Download PDF

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Publication number
CN113563943A
CN113563943A CN202011098574.9A CN202011098574A CN113563943A CN 113563943 A CN113563943 A CN 113563943A CN 202011098574 A CN202011098574 A CN 202011098574A CN 113563943 A CN113563943 A CN 113563943A
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China
Prior art keywords
kettle
lubricating grease
grease
base oil
extreme pressure
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CN202011098574.9A
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Chinese (zh)
Inventor
严冲
谢刚
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Nator Lubrication Jiangsu Co ltd
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Nator Lubrication Jiangsu Co ltd
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Priority to CN202011098574.9A priority Critical patent/CN113563943A/en
Publication of CN113563943A publication Critical patent/CN113563943A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06—Well-defined aromatic compounds
    • C10M2203/065—Well-defined aromatic compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
    • C10M2207/1276—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic used as thickening agent
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C10M2215/065—Phenyl-Naphthyl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • C10M2215/222—Triazines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention discloses high-performance gear lubricating grease which is characterized by comprising synthetic base oil, a thickening agent, a nano-scale solid lubricant, an antioxidant and an extreme pressure antiwear agent, wherein the mass percentage of each component is as follows: 85-89% of synthetic base oil, 9-11% of a thickening agent, 0.5-1% of a nano-scale solid lubricant, 0.5-1% of an antioxidant and 1-2% of an extreme pressure antiwear agent. The novel lubricating grease production contact kettle is adopted for saponification, the novel lubricating grease production contact kettle has the advantages of high-speed material circulation, large material heat transfer area, more sufficient material reaction, more complete saponification and crystallization, blending by the blending kettle with the high-speed dispersion disc and dispersion by the gravity rotating dispersion equipment, so that the material is dispersed more sufficiently, the lubricating grease is finally enabled to have excellent high-low temperature performance, extreme pressure wear resistance, water-resistant shear resistance and colloid stability, the parts such as gears, gear racks, worm gears, universal joints and the like can be effectively protected from being worn, the noise is reduced, and the service life of the lubricating parts is effectively prolonged.

Description

High-performance gear lubricating grease
Technical Field
The invention belongs to the technical field of lubricating and sealing materials, and particularly relates to high-performance gear lubricating grease.
Background
With the rapid development of modern industry, gears, universal joints, gear racks, worm gears and the like are widely applied to the industries of small-sized speed reduction motors, automobiles, electric tools and the like. The trend of miniaturization and integration is continuously pursued in the industries, so that the traditional oil bath lubrication mode cannot meet the requirement. The industries are widely distributed in areas and have severe use environments, and parts need to be free of maintenance for life. The existing gear lubricating grease has poor high-low temperature performance and oxidation resistance, so that the lubricating grease is easy to lose efficacy or run off, and cannot normally run under the working conditions in cold winter; the water resistance is poor, and the lubricating grease is easily washed away by rainwater; the extreme pressure wear resistance is poor, so that the lubrication part can be worn or broken, the service life is influenced, and the requirement of no maintenance for life can not be met. For this reason, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
In view of the above situation, the present invention provides a high performance gear grease, so as to solve the problems of the prior gear grease proposed in the background art that the high and low temperature performance, the oxidation resistance, the water resistance, the extreme pressure wear resistance are poor, and the lifetime maintenance-free performance cannot be satisfied.
In order to achieve the purpose, the invention provides the following technical scheme: the high-performance gear lubricating grease is characterized by comprising synthetic base oil, a thickening agent, a nano-scale solid lubricant, an antioxidant and an extreme pressure antiwear agent, wherein the mass percentage of each component is as follows: 85-89% of synthetic base oil, 9-11% of a thickening agent, 0.5-1% of a nano-scale solid lubricant, 0.5-1% of an antioxidant and 1-2% of an extreme pressure antiwear agent.
Preferably, the synthetic base oil is one or more of poly-alpha-olefin, alkyl naphthalene and diisooctyl sebacate.
Preferably, the thickening agent is one or more of stearic acid, 12-hydroxystearic acid, sebacic acid, boric acid, benzoic acid and lithium hydroxide.
Preferably, the nanoscale solid lubricant is one or a mixture of melamine cyanurate salt and polytetrafluoroethylene.
Preferably, the antioxidant is one or more of liquid mixed dialkyl diphenylamine, thioether-group-containing high molecular weight phenols, p' -diisooctyl diphenylamine homopolymer and N-phenyl-alpha-naphthylamine copolymer.
Preferably, the extreme pressure antiwear agent is one or more of zinc di (n-butyl isooctyl) dithiophosphate, dibutyl dithiocarbamate and borate.
Preferably, the preparation of the grease uses synthetic base oil as a base material, and the preparation method of the grease comprises the following steps: at normal temperature, adding 1/2 synthetic base oil with the formula amount into a novel lubricating grease contact kettle, stirring and heating to 60-70 ℃, adding a thickening agent with the formula amount, heating to 110-120 ℃ in a closed manner, reacting at a constant temperature for 30min, continuously heating, controlling the pressure to be 0.5-0.55 MPa, heating to 210-215 ℃, keeping the temperature for 30min, gradually opening a pressure release valve to discharge the pressure, pumping a certain amount of synthetic base oil, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding the antioxidant, the extreme pressure antiwear agent and the nanoscale solid lubricant according to the formula, continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotary equipment.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts synthetic base oil as a base material, has excellent high and low temperature performance, good compatibility with lubricating part sealing materials and excellent oxidation resistance, can meet the requirement that lubricating parts such as gears, gear racks, worm gears, universal joints and the like are used in extreme environments, short chain soap fibers with regular and uniform structures are formed by a thickening agent under saponification reaction and crystallization of a novel contactor kettle, has excellent colloid stability, can effectively improve the extreme pressure wear resistance of lubricating grease by using a nano-scale solid lubricant and an extreme pressure wear-resistant agent, has effective wear-resistant and friction-reducing effects, reduces noise and starting torque in the operation process, effectively improves the oxidation resistance of the lubricating grease by using a novel antioxidant, prolongs the service life and accordingly achieves the purpose of being free of maintenance for life.
2. The invention adopts the novel lubricating grease to produce the contact kettle for saponification, has high-speed material circulation, large material heat transfer area, more sufficient material reaction and more complete saponification and crystallization, adopts the blending kettle with a high-speed dispersion disc for blending and adopts gravity rotating dispersion equipment for dispersion, so that the material is dispersed more sufficiently, and the finally manufactured lubricating grease has excellent high and low temperature performance, extreme pressure wear resistance, water and shear resistance and colloid stability so as to meet the lubricating requirements of related parts, can effectively protect parts such as gears, gear racks, worm gears, universal joints and the like from being worn, reduces the noise and effectively prolongs the service life of the lubricating parts.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Example 1:
putting 50% of poly-alpha-olefin into a novel lubricating grease contact kettle at normal temperature, stirring and heating to 60-70 ℃, adding 7.5% of 12-hydroxystearic acid and 1.5% of lithium hydroxide in sequence, heating to 110-120 ℃ in a closed manner, reacting at a constant temperature for 30min, continuously heating, controlling the pressure to be 0.5-0.55 MPa, heating to 210-215 ℃, keeping for 30min, gradually opening a pressure release valve to discharge the pressure, pumping 37% of poly-alpha-olefin, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; and then transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding 1% of antioxidant L115, 1% of extreme pressure antiwear agent T202, 1% of boric acid ester and 1% of nano-scale solid lubricant polytetrafluoroethylene, continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotating equipment.
Example 2:
putting 38% of poly-alpha-olefin and 12% of alkyl naphthalene into a novel lubricating grease contact kettle at normal temperature, stirring and heating to 60-70 ℃, adding 7.5% of 12-hydroxystearic acid and 1.5% of lithium hydroxide in sequence, heating to 110-120 ℃ in a closed manner, reacting for 30min at a constant temperature, continuously heating to 210-215 ℃ under the pressure of 0.5-0.55 MPa, keeping for 30min, gradually opening a pressure release valve to release the pressure, then pumping 37% of poly-alpha-olefin, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; and then transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding 1% of antioxidant L115, 1% of extreme pressure antiwear agent T202, 1% of boric acid ester and 1% of nano-scale solid lubricant MCA (melamine cyanurate), continuously stirring and homogenizing for 60min, discharging after homogenizing, and dispersing and packaging the final product of lubricating grease by adopting gravity rotary equipment.
Example 3:
putting 38% of poly-alpha-olefin and 12% of alkyl naphthalene into a novel lubricating grease contact kettle at normal temperature, stirring and heating to 60-70 ℃, adding 4.5% of 12-hydroxystearic acid, 3.0% of stearic acid and 1.5% of lithium hydroxide in sequence, heating to 110-120 ℃ in a closed manner, reacting for 30min at a constant temperature, continuously heating and controlling the pressure to be 0.5-0.55 MPa, heating to 210-215 ℃, keeping for 30min, gradually opening a pressure release valve to release the pressure, then pumping 32% of poly-alpha-olefin and 5% of diisooctyl sebacate, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; and then transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding 1% of antioxidant pair, p' -diisooctyl diphenylamine homopolymer and N-phenyl-alpha-naphthylamine copolymer, 1% of extreme pressure antiwear agent bis-dibutyl dithiocarbamate, 1% of boric acid ester and 1% of nano-scale solid lubricant polytetrafluoroethylene, continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotating equipment.
Example 4:
putting 50% of poly-alpha-olefin into a novel lubricating grease contact kettle at normal temperature, stirring and heating to 60-70 ℃, adding 6% of 12-hydroxystearic acid, 1.5% of sebacic acid and 1.5% of lithium hydroxide in sequence, heating to 110-120 ℃ in a closed manner, reacting for 30min at a constant temperature, continuously heating to 210-215 ℃ while controlling the pressure to be 0.5-0.55 MPa, keeping for 30min, gradually opening a pressure release valve to release the pressure, then pumping 37% of poly-alpha-olefin, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; and then transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding 1% of antioxidant pair, p' -diisooctyldiphenylamine homopolymer and N-phenyl-alpha-naphthylamine copolymer, 1% of extreme pressure antiwear agent T202, 1% of boric acid ester and 1% of nano-scale solid lubricant MCA (melamine cyanurate), continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotating equipment.
Example 5:
putting 50% of poly-alpha-olefin into a novel lubricating grease contact kettle at normal temperature, stirring and heating to 60-70 ℃, adding 7.5% of 12-hydroxystearic acid and 1.5% of lithium hydroxide in sequence, heating to 110-120 ℃ in a closed manner, reacting for 30min at a constant temperature, continuously heating, controlling the pressure to be 0.5-0.55 MPa, heating to 210-215 ℃, keeping for 30min, gradually opening a pressure release valve to discharge the pressure, then pumping 20% of poly-alpha-olefin, 12% of alkyl naphthalene and 5% of diisooctyl sebacate, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; and then transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding 1% of antioxidant pair, p' -diisooctyl diphenylamine homopolymer and N-phenyl-alpha-naphthylamine copolymer, 1% of extreme pressure antiwear agent bis-dibutyl dithiocarbamate, 1% of boric acid ester and 1% of nano-scale solid lubricant polytetrafluoroethylene, continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotating equipment.
The product obtained in example 5 according to the invention was measured for its various performance parameters according to the standard methods listed in table 1 below, and the results are summarized in table 1.
Table 1 shows the properties of the sealing greases according to the invention
Figure 374401DEST_PATH_IMAGE001
。
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The high-performance gear lubricating grease is characterized by comprising synthetic base oil, a thickening agent, a nano-scale solid lubricant, an antioxidant and an extreme pressure antiwear agent, wherein the mass percentage of each component is as follows: 85-89% of synthetic base oil, 9-11% of a thickening agent, 0.5-1% of a nano-scale solid lubricant, 0.5-1% of an antioxidant and 1-2% of an extreme pressure antiwear agent.
2. The high performance gear grease of claim 1 wherein the synthetic base oil is a mixture of one or more of polyalphaolefins, alkylnaphthalenes, and diisooctyl sebacate.
3. The high-performance gear grease of claim 1, wherein the thickener is one or more of stearic acid, 12 hydroxystearic acid, sebacic acid, boric acid, benzoic acid, and lithium hydroxide.
4. The high-performance gear grease of claim 1, wherein the nanoscale solid lubricant is one or more of melamine cyanurate salt and polytetrafluoroethylene.
5. The high performance gear grease of claim 1 wherein the antioxidant is a mixture of one or more of liquid mixed dialkyl diphenylamine, thioether group-containing high molecular weight phenols, p' -diisooctyl diphenylamine homopolymer and N-phenyl-alpha-naphthylamine copolymer.
6. The high-performance gear grease of claim 1, wherein the extreme pressure antiwear agent is one or more of zinc di (n-butyl isooctyl) dithiophosphate, bis-dibutyl dithiocarbamate and borate.
7. The high-performance gear grease of any one of claims 1-6, wherein the grease is prepared by using a synthetic base oil as a base stock, and the grease is prepared by the following steps: at normal temperature, adding 1/2 synthetic base oil with the formula amount into a novel lubricating grease contact kettle, stirring and heating to 60-70 ℃, adding a thickening agent with the formula amount, heating to 110-120 ℃ in a closed manner, reacting at a constant temperature for 30min, continuously heating, controlling the pressure to be 0.5-0.55 MPa, heating to 210-215 ℃, keeping the temperature for 30min, gradually opening a pressure release valve to discharge the pressure, pumping a certain amount of synthetic base oil, reducing the temperature in the kettle to 180 ℃, and keeping the temperature for 5 min; transferring the materials in the kettle into a blending kettle with a high-speed dispersion disc, stirring and cooling to 70-80 ℃, adding the antioxidant, the extreme pressure antiwear agent and the nanoscale solid lubricant according to the formula, continuously stirring and homogenizing for 60min, discharging after homogenizing, and performing dispersion packaging on the final product lubricating grease by adopting gravity rotary equipment.
CN202011098574.9A 2020-10-14 2020-10-14 High-performance gear lubricating grease Pending CN113563943A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103242942A (en) * 2013-04-26 2013-08-14 武汉博达特种润滑技术有限公司 Low-temperature worm and gear lubricating grease composition and preparation method thereof
CN104804842A (en) * 2014-01-27 2015-07-29 中国石油化工股份有限公司 Environmentally friendly lubricating grease composition and preparation method thereof
CN104987925A (en) * 2015-07-16 2015-10-21 中国石油化工股份有限公司 Slide rail grease composition and preparation method thereof
CN110408463A (en) * 2019-07-22 2019-11-05 纳拓润滑技术（上海）有限公司 A kind of lubricating grease and preparation method thereof for worm and gear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103242942A (en) * 2013-04-26 2013-08-14 武汉博达特种润滑技术有限公司 Low-temperature worm and gear lubricating grease composition and preparation method thereof
CN104804842A (en) * 2014-01-27 2015-07-29 中国石油化工股份有限公司 Environmentally friendly lubricating grease composition and preparation method thereof
CN104987925A (en) * 2015-07-16 2015-10-21 中国石油化工股份有限公司 Slide rail grease composition and preparation method thereof
CN110408463A (en) * 2019-07-22 2019-11-05 纳拓润滑技术（上海）有限公司 A kind of lubricating grease and preparation method thereof for worm and gear

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